八年级英语上册 Unit 1 Could you please clean your room？语法（can和could）课件 .ppt

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1、Grammar,Do you know these sports?,I could not row a boat at five. Now I can .,row a boat,ride a bike,.could not . now .can.,play badminton,.could not . now .can.,swim/ have a swim,.could not . now .can.,fly a kite/ kites,.could not . now .can.,Using “can”/ “could” to talk about abilitywe use “can” t

2、o say that we are able to do something now.we use “could” to say that we were able to do something in the past.,Grammar,e.g. I can (cannot /cant /can not ) swim. What about you? He could (couldnt /could not) dance in the past. What about you ?,What can they do ?/ What could they not do?,Last year, S

3、andy _.Now she _. . Simon.,Ask and answer the questions,Can Sandy row a boat now? Yes, she canCould Sandy row a boat last year? No, she couldnt.,2 can could possibility,When we want to express something is possible, we use can/couldcan/could - present (the possibility: cancould),2 can could - possib

4、ility,注意,当委婉表达 “请求” “要求”时，用could。 而回答时，肯定用can.否定语气一般要婉转，有时可说明不能的原因。如：-Could you send this letter for me?-Yes, I can./sorry, Im busy now.,can,can not,could not,could,can not,Take turns to ask and answer questions using “can” or “could”. Try to make dialogues in pairs.1._ you speak Japanese ?2._ you play the piano last year?3._ you cook?4._ you use a computer when you were 3?5._ you ride a bicycle when you were very younger?,Can,Could,Can,Could,Could,Homework:,1 Recite new phrases.2 Learn to use can/could to show ability/ possibility.3 Pay attention to the sentence change.,